Finding the Fourth Proportional to 9,862.47, 13,610.25 and 5,386.32

Step by Step Solution

1. Step 1: Write the proportion equation
   9,862.47 : 13,610.25 = 5,386.32 : x
2. Step 2: Convert to fraction form
   9,862.47/13,610.25 = 5,386.32/x
3. Step 3: Cross multiply
   9,862.47x = 13,610.25 × 5,386.32
4. Step 4: Simplify right side
   9,862.47x = 73,309,161.78
5. Step 5: Solve for x
   x = 73,309,161.78/9,862.47
6. Step 6: Final answer
   x = 7,433.14